For the next update to simpleplanes I think that jundroo should add submarine parts and other things like that. For example they should add a periscope: like a camera but functions underwater. Maybe an underwater propellor for (you guessed it) it propelles you underwater. And also add in more particle effects.
@KingDeadshot turbulence would be cool
For the underwater working propellers, look through my ships. I have at least three ships with underwater props.
Torpedoes
What really needs updating is the old parts. Things like wings need to be redone
I want the game itself to be updated such as the water and psychics although I do want this aswell
@KingDeadshot Well. Like wind physics
It changes as weather changes
@KingDeadshot And wind